Trace number 2668364

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1? (MO) 36.9664 36.9853

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-degen3.opb
MD5SUM180182351d074e1d8188f1fe7258cbed
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables54540
Total number of constraints1503
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1503
Minimum length of a constraint60
Maximum length of a constraint6090
Number of terms in the objective function 47190
Biggest coefficient in the objective function 1001264250880
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 339379725479256
Number of bits of the sum of numbers in the objective function 49
Biggest number in a constraint 1001264250880
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 339379725479256
Number of bits of the biggest sum of numbers49
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
2.59/2.63	c constraints 1503/0 clauses 0/0 units 0
2.59/2.63	c vars 54540
2.59/2.63	c objective 47190 + -312616710540981
36.77/36.80	s UNKNOWN

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668364-1276557963/watcher-2668364-1276557963 -o /tmp/evaluation-result-2668364-1276557963/solver-2668364-1276557963 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668364-1276557963.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 989
/proc/meminfo: memFree=1850600/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=2208 CPUtime=0
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 260 0 0 0 0 0 0 0 20 0 1 0 31398014 2260992 183 1992294400 134512640 136485738 4289889504 18446744073709551615 135222460 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/989/statm: 552 183 151 482 0 68 0

[startup+0.0986319 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 989
/proc/meminfo: memFree=1850600/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=6452 CPUtime=0.09
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 1291 0 0 0 9 0 0 0 20 0 1 0 31398014 6606848 970 1992294400 134512640 136485738 4289889504 18446744073709551615 135844708 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/989/statm: 1613 970 151 482 0 1129 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6452

[startup+0.101633 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 989
/proc/meminfo: memFree=1850600/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=5936 CPUtime=0.09
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 1297 0 0 0 9 0 0 0 20 0 1 0 31398014 6078464 847 1992294400 134512640 136485738 4289889504 18446744073709551615 135690944 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/989/statm: 1484 847 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301674 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 989
/proc/meminfo: memFree=1850600/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=8468 CPUtime=0.29
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 1977 0 0 0 29 0 0 0 20 0 1 0 31398014 8671232 1527 1992294400 134512640 136485738 4289889504 18446744073709551615 135416615 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/989/statm: 2117 1527 156 482 0 1633 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8468

[startup+0.700761 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 989
/proc/meminfo: memFree=1850600/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=17732 CPUtime=0.69
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 4169 0 0 0 68 1 0 0 21 0 1 0 31398014 18157568 3719 1992294400 134512640 136485738 4289889504 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/989/statm: 4433 3719 156 482 0 3949 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17732

[startup+1.50093 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 990
/proc/meminfo: memFree=1830132/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=36120 CPUtime=1.49
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 8405 0 0 0 146 3 0 0 23 0 1 0 31398014 36986880 7955 1992294400 134512640 136485738 4289889504 18446744073709551615 135177532 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/989/statm: 9030 7955 156 482 0 8546 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 36120

[startup+3.10127 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 990
/proc/meminfo: memFree=1806820/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=109968 CPUtime=3.09
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 26070 0 0 0 296 13 0 0 25 0 1 0 31398014 112607232 25620 1992294400 134512640 136485738 4289889504 18446744073709551615 134616308 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/989/statm: 27492 25621 197 482 0 27008 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 109968

[startup+6.30095 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 990
/proc/meminfo: memFree=1593788/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=324260 CPUtime=6.29
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 82621 0 0 0 590 39 0 0 25 0 1 0 31398014 332042240 77101 1992294400 134512640 136485738 4289889504 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/989/statm: 81065 77102 197 482 0 80581 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 324260

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 992
/proc/meminfo: memFree=1267420/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=628604 CPUtime=12.69
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 165001 0 0 0 1195 74 0 0 25 0 1 0 31398014 643690496 153010 1992294400 134512640 136485738 4289889504 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/989/statm: 157151 153010 197 482 0 156667 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 628604

[startup+25.502 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 992
/proc/meminfo: memFree=674824/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=1207760 CPUtime=25.48
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 324862 0 0 0 2405 143 0 0 25 0 1 0 31398014 1236746240 296864 1992294400 134512640 136485738 4289889504 18446744073709551615 134616561 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/989/statm: 301940 296865 197 482 0 301456 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1207760



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+36.8004 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 992
/proc/meminfo: memFree=65984/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=1847196 CPUtime=36.77
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4202496 494733 0 0 0 3462 215 0 0 25 0 1 0 31398014 1891528704 445486 1992294400 134512640 136485738 4289889504 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/989/statm: 461799 445487 197 482 0 461315 0
Current children cumulated CPU time (s) 36.77
Current children cumulated vsize (KiB) 1847196

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

[startup+36.9085 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 992
/proc/meminfo: memFree=65984/2059040 swapFree=4140216/4192956
[pid=989] ppid=987 vsize=0 CPUtime=36.88
/proc/989/stat : 989 (pbct) R 987 989 32745 0 -1 4194308 494831 0 0 0 3463 225 0 0 25 0 1 0 31398014 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/989/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 36.88
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 36.9853
CPU time (s): 36.9664
CPU user time (s): 34.6317
CPU system time (s): 2.33465
CPU usage (%): 99.9489
Max. virtual memory (cumulated for all children) (KiB): 1847196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 34.6317
system time used= 2.33465
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 494831
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1
involuntary context switches= 471

runsolver used 0.076988 second user time and 0.172973 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-15 01:26:04
IDJOB=2668364
IDBENCH=2464
IDSOLVER=1170
FILE ID=node010/2668364-1276557963
PBS_JOBID= 11173492
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-degen3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668364-1276557963/watcher-2668364-1276557963 -o /tmp/evaluation-result-2668364-1276557963/solver-2668364-1276557963 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668364-1276557963.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 180182351d074e1d8188f1fe7258cbed
RANDOM SEED=1839763817

node010.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.267
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.53
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.267
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1851128 kB
Buffers:         26344 kB
Cached:         104684 kB
SwapCached:       5988 kB
Active:          93520 kB
Inactive:        50080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1851128 kB
SwapTotal:     4192956 kB
SwapFree:      4140216 kB
Dirty:           12568 kB
Writeback:           0 kB
AnonPages:       10868 kB
Mapped:          12956 kB
Slab:            42468 kB
PageTables:       4020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182688 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62488 MiB
End job on node010 at 2010-06-15 01:26:43